valency

n. combining capacity of an element (Chemistry)

Valence in molecules, atoms, or subatomic particles:valence in chemistryvalence bond theory in chemistryvalence shell in chemistryvalence band in physics valence quarks in particle physics Valence in other sciences:valence in linguistics, Valence (psychology) (and neuroscience) refers to the emotional value associated with a stimulus; e.g., a familiar face can have positive valence.the degree (or valency) of a vertex in graph theory (mathematics)univalent function in mathematicsValence is the name of several communes of France:Valence, préfecture (capital) of the Drôme départementValence, in the Charente départementValence, in the Tarn-et-Garonne département
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Noun
1. the phenomenon of forming chemical bonds
(hypernym) chemical phenomenon
2. (biology) a relative capacity to unite or react or interact as with antigens or a biological substrate
(synonym) valence
(hypernym) power, powerfulness
(attribute) univalent
(classification) biology, biological science
3. (chemistry) a property of atoms or radicals; their combining power given in terms of the number of hydrogen atoms (or the equivalent)
(synonym) valence
(hypernym) power, powerfulness
(hyponym) covalence, covalency
(attribute) monovalent, univalent
(classification) chemistry, chemical science

(n.)
See Valence.
  

(n.)
A unit of combining power; a so-called bond of affinity.
  

See degree.